Plectrum



FIG. 1 is a front elevational view of a plectrum showing my design therefor;

FIG. 2 is a side elevational view thereof, the other side being identical thereto;

FIG. 3 is a front, bottom perspective view thereof;

FIG. 4 rear elevational view thereof; and,

FIG. 5 is a rear, bottom perspective view thereof. 

CLAIM The ornamental design for a plectrum, as shown and described. 